Search:

Type: Posts; User: Capz

Page 1 of 10 1 2 3 4

Search: Search took 0.01 seconds.

  1. I installed this unit last week. I reclaimed...

    I installed this unit last week. I reclaimed about 10-12lbs of R22. And since we use a lot of R22 at this location, I put the reclaimed R22 right back in. Installed a suction line filter for good...
  2. Replies
    11
    Views
    430

    Make up air.... don't forget the make up air or...

    Make up air.... don't forget the make up air or you will have flies!
  3. Replies
    10
    Views
    334

    Why take so long for a new motor? That motor is...

    Why take so long for a new motor? That motor is easily sourced. But I do like your crate. Looks permanent to me.
  4. Replies
    44
    Views
    825

    I agree. This is your problem. Trust me on...

    I agree. This is your problem. Trust me on this. I have never found a split coil in which I have taken apart & opened to be free of debris & dirt. This must be cleaned for accurate test results.
  5. Thanks everybody, the purchase and upgrade for...

    Thanks everybody, the purchase and upgrade for this box is still in a holding pattern but we will be going with the 407C.

    Actually I'm glad for the delay, been quite cold and the snow has finally...
  6. Replies
    37
    Views
    1,431

    Was the condenser properly cleaned....did they...

    Was the condenser properly cleaned....did they remove the top and spread it open to clean the center? The evaporator, did you take a good close look at it? Sometimes this stuff is difficult to get...
  7. Thread: Favorite VFD

    by Capz
    Replies
    49
    Views
    5,513

    I like the Danfoss. Well built and easy to set...

    I like the Danfoss. Well built and easy to set up. I don't like the ABB. I have about 6 old York VFD units which I'd bet are built by ABB. All junk. One out of six works after 10 years. Not a...
  8. Thread: Static Pressure

    by Capz
    Replies
    17
    Views
    1,190

    Hey, after cleaning those reheat coils.....be...

    Hey, after cleaning those reheat coils.....be aware you might blow dirt or dust that has collected for years between the blower duct to the reheat coil. Or not, but beware. Now that the reheat can...
  9. That 230 would be a delta. I think 208 would be...

    That 230 would be a delta. I think 208 would be a wye. The wye wouldn't have a wild leg as it is 3 120vac legs. The 240 3p delta has that high or wild leg. About 175v
  10. Replies
    71
    Views
    9,792

    Desert Guy, can you email me the JC handbook pdf?...

    Desert Guy, can you email me the JC handbook pdf?
    Thank You
  11. Replies
    8
    Views
    961

    Actuators often, such as some Belimo will use...

    Actuators often, such as some Belimo will use 0-10 vdc thus the reason for the analog output. This gives full modulating control.

    Ditigal or binary output is a 24vac signal driving the actuator...
  12. Replies
    13
    Views
    881

    Did you check the loop water pressure? How many...

    Did you check the loop water pressure? How many floors above the pump is this reheat located?
  13. Replies
    13
    Views
    881

    Did you actually remove the screen from the...

    Did you actually remove the screen from the strainer in order to clean? What are you using for a control valve? What controls it?
  14. I 2x what Gravity wrote. I have a 400,000 btu AC...

    I 2x what Gravity wrote. I have a 400,000 btu AC with dual Copelands using unloaders. I have them set at 58psi & 70psi. But most important, accurately record your SH at the compressor to determine...
  15. Replies
    33
    Views
    1,137

    Colnago, what you explained in your 1st post does...

    Colnago, what you explained in your 1st post does not reason. You checked something wrong or you are using a faulty meter with faulty leads. If you truly had an open fuse on a 3p circuit, you...
  16. United Refrigeration carries an entire line of...

    United Refrigeration carries an entire line of R22/R407C medium temp replacement equipment
  17. Walk in cooler, Replace equipment using R407C or R404A?

    I need order a new Trenton condensing unit along with the new evaporator this week Basically replacing everything but the box. I converted to R404A with good success in the past when I was a field...
  18. Replies
    16
    Views
    1,316

    Ideal meters are for amateurs. Not saying they...

    Ideal meters are for amateurs. Not saying they are not tough or dependable. Just not a Fluke. Buy the Fluke if you will use it everyday. The Fluke 87 is big. Great meter but overkill. The Fluke...
  19. Thread: Unloader settings

    by Capz
    Replies
    7
    Views
    669

    Unloaders are also used to prevent compressor...

    Unloaders are also used to prevent compressor motors from having to shutdown and start back up again in short notice in order to cut back on the electrical demands WHEN & IF POSSIBLE. Other words,...
  20. Replies
    15
    Views
    1,277

    How exactly did they tell you to test for a...

    How exactly did they tell you to test for a partially blocked cap tube?



    My thoughts....you have a partially blocked cap tube. You should be seeing higher suction pressures as the box warms...
  21. Is this a hot water system? How are you making...

    Is this a hot water system? How are you making heat? Hot water? Electric heating elements at each VAV? Steam or hot water in the air handlers air handlers? Tube bundles and hot water circulation...
  22. The door frame will be warm to the touch maybe...

    The door frame will be warm to the touch maybe 120F. Frame Heaters are so many watts per ft. I don't recall how many watts per ft is standard. Check with the supplier.

    If you are melting a...
  23. Thread: 1st service call

    by Capz
    Replies
    224
    Views
    11,532

    I've worked residential, commercial and currently...

    I've worked residential, commercial and currently hvac facilities in a large hospital. The in house work is by far the most difficult. For those guys telling you how difficult residential work...
  24. Thread: Wire Nut Twisting

    by Capz
    Replies
    46
    Views
    2,685

    Speaking of wire nuts....do hvac guys ever use...

    Speaking of wire nuts....do hvac guys ever use the proper size? All I see out there are orange nuts all the way down to #22 t-wire. Guys need to carry gray & blue wire nuts for the light stuff. ...
  25. Googizzo is the customer.....trying to figure out...

    Googizzo is the customer.....trying to figure out if he can get some free repairs.....
  26. So...let's take the rail out of the equation for...

    So...let's take the rail out of the equation for now as it has its own solenoid & control. Problem...The evaps are icing. Which is caused by a few things. One: the compressor is running too long,...
  27. Replies
    58
    Views
    4,582

    How would anyone with enough knowledge to install...

    How would anyone with enough knowledge to install such a rat trap ever think it would work?
  28. Replies
    27
    Views
    1,667

    My tip for brazing sight glasses & filter dryers,...

    My tip for brazing sight glasses & filter dryers, use 45% silver & flux. And use oxy/ace if you have it. 45% uses less heat than does 15%.. The sharp hot flame from an oxy/ace pinpoints the heat...
  29. VFD's have axial fans. Are they working? I've...

    VFD's have axial fans. Are they working? I've seen bad fans cause units to overheat along with dust buildup on the heat sinks.
  30. Replies
    42
    Views
    1,997

    Your numbers do sound good. Go with the timer....

    Your numbers do sound good. Go with the timer. You can't fix employees keeping doors open too long.
  31. Replies
    42
    Views
    1,997

    I would have a minimum of 2 periods 30 mins each....

    I would have a minimum of 2 periods 30 mins each. I have used 3 periods for older units with poor insulation in humid weather. Why are your temps set so high? Is this for beverage only? You...
  32. Thread: R-12 Manifold

    by Capz
    Replies
    12
    Views
    748

    I still use R12/R22/R502 high quality brass YJ...

    I still use R12/R22/R502 high quality brass YJ gauges on my YJ manifold. And I use liquid filled stubby R12/R22/R502 for much of my troubleshooting & repair work. But if you intend on working on...
  33. Replies
    42
    Views
    1,997

    You need two if not three thaw periods 8 or 12...

    You need two if not three thaw periods 8 or 12 hrs apart. I'd recondmend three. I do have one more thought, be sure your temperature controller is properly cycling as not to have the refer unit...
  34. Thread: Megger Readings.

    by Capz
    Replies
    22
    Views
    1,367

    So, you meg small motors for the sake of good...

    So, you meg small motors for the sake of good practice? Unless the motor is tripping breakers I see no reason. And 125M ohms is not a show stopper.

    Some meggers have an on/off switch. You...
  35. Thread: Megger Readings.

    by Capz
    Replies
    22
    Views
    1,367

    What made you to meg out the a relatively small 5...

    What made you to meg out the a relatively small 5 ton compressor in the first place?
  36. A PM takes what it takes. If the previous repair...

    A PM takes what it takes. If the previous repair work was not done correctly, am I going to leave it that way? So much older equipment has been repaired so many times with inadequet parts and...
  37. Replies
    69
    Views
    3,788

    What exactly are the purposes for the adjustable...

    What exactly are the purposes for the adjustable pulley sheave on the motor?
  38. Thread: trane rtu

    by Capz
    Replies
    22
    Views
    1,506

    I'd advise a qualified electrician or AC service...

    I'd advise a qualified electrician or AC service company.
  39. Replies
    15
    Views
    1,017

    Timebuilder, why would you need to swap the...

    Timebuilder, why would you need to swap the compressors? Unless the combined unit has a hot gas defrost on Stage 2 only, I would think you could permanently swap the wiring. But I'd be sure to draw...
  40. Replies
    18
    Views
    1,299

    Water boils at 69F at 18,288 microns, and at 2000...

    Water boils at 69F at 18,288 microns, and at 2000 microns water will boil off at 15F. You want guess at what temp water will boil at 500mi?

    Not saying I don't pressure test with 100 psi n2 before...
  41. Thread: Work Pants

    by Capz
    Replies
    52
    Views
    5,677

    I am not permitted to wear blue jeans. I prefer...

    I am not permitted to wear blue jeans. I prefer carpenter style jeans but are only available in blue jean or cardhart and dicky duck style material. 60/40 polyester is durable but way too hot. I...
  42. Thread: subcooling

    by Capz
    Replies
    74
    Views
    4,076

    And keep in mind, liquid is more dense than...

    And keep in mind, liquid is more dense than vapor, it's heavier. So...additional sub cooled liquid must be present in the system to push the liquid up hill or to elevate it to an evaporator that may...
  43. Thread: subcooling

    by Capz
    Replies
    74
    Views
    4,076

    You can't have too much sub cooling unless we are...

    You can't have too much sub cooling unless we are referring to condensing units without receivers. But at some point the liquid will stabilize at the given temps and pressures. The liquid will only...
  44. Replies
    9
    Views
    627

    I'd use new copper nipple & fittings to make the...

    I'd use new copper nipple & fittings to make the transition. Don't forget to use silver solder & flux on that new valve.
  45. Replies
    19
    Views
    954

    Twist it or wiggle it.

    Twist it or wiggle it.
  46. Thread: Odd restriction

    by Capz
    Replies
    60
    Views
    2,911

    I'd measure temps of condenser inlet, mid area,...

    I'd measure temps of condenser inlet, mid area, outlet for gradual temp change. If you notice a rapid change of temp indicating flooded condenser from an overcharge, then I'd say still have a...
  47. Replies
    8
    Views
    936

    Good work on that Kenmore and you should have...

    Good work on that Kenmore and you should have plenty of *winter* in charge that puppy. Not that it matters!
  48. Replies
    54
    Views
    2,729

    Possible still air in the system? Or a really...

    Possible still air in the system? Or a really cruddy condenser? How confident are you of your vacuum pump and hoses? What about the headmaster valve? Could it be bypassing the condenser? Is the...
  49. Thread: Odd restriction

    by Capz
    Replies
    60
    Views
    2,911

    Factory doesn't want to admit their cap tube...

    Factory doesn't want to admit their cap tube units can plug. You will have this unit working like new after you go back with the new cap tube and recharge. I never had any luck cutting back a few...
  50. Replies
    26
    Views
    2,281

    Head psi is high cause your load is high. Look...

    Head psi is high cause your load is high. Look at your suction pressure, should be 10F colder. And it could it be overcharged?
    Check Superheat too as mentioned.
Results 1 to 50 of 490
Page 1 of 10 1 2 3 4

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event